Originally Posted by axl911

Okay...so for those with 993 Non-varioram converted to a Varioram, does a freer flowing cat/exhaust system help increase hp or torque?

Porsche did change the exhaust from Bischoff to Gillete. I wonder if there is any performance difference.

Originally Posted by Stuttgart951

For those of us not remapping our ECU's, do you have a chart of a stock VR vs. NVR?

Always been curious, never been able to find one.

Originally Posted by Fly911

Why do you want a Vario Ram, when the non VR is so much better? The VR is heavier, takes up more space, is more complicated with more moving parts, etc, etc, and as opposed to what most people believe, the VR does not give you more power or performance than the non VR. The only "advantage" the VR has, is that it give a better torque on low rpm, so if you put-put around town in 4th gear at 1500rpm, then the VR is for you. If you prefer more spirited driving, the non VR puts out just as much power as the VR, despite the 15HP difference on paper. If you want to chip the non VR engine, it's cheaper and easier than the VR. Take a look at Porsche tuner FVD's page for 993 engine tuning: http://shop.fvd.de/us/en/Porsche-0/9...uningKits.html. The non VR motor cranks out the same 300HP as the VR motor.
The English magazine Total 911 did earlier this year a comparison between the VR and non VR, and concluded that the non VR was more responsive and quicker to drive. The only "benefit" the VR motor had, was that it looked better... The German magazine Auto Motor & Sport did a VR vs non VR comparison in August 1995, and the 0-100km/h both cars did in 5.2 seconds, while the VR car had a 1.5mph higher top speed. The fact that Porsche abandoned the VR concept, and went back to the non VR intake on all later water cooled cars, speaks for itself. With all the potential problems with the OBDII 993's, the non VR motor is a no brainer!!!